Home / 3,953.18-5,454.40-2,251.30

Finding the Fourth Proportional to 3,953.18, 5,454.40 and 2,251.30

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Solution

The fourth proportional to 3,953.18, 5,454.40 and 2,251.30 is: 3,106.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.18 : 5,454.40 = 2,251.30 : x
  2. Step 2: Convert to fraction form
    3,953.18/5,454.40 = 2,251.30/x
  3. Step 3: Cross multiply
    3,953.18x = 5,454.40 × 2,251.30
  4. Step 4: Simplify right side
    3,953.18x = 12,279,490.72
  5. Step 5: Solve for x
    x = 12,279,490.72/3,953.18
  6. Step 6: Final answer
    x = 3,106.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.